S 开头单词
sphincteral n.括約肌
sphincter vesicae 膀胱括約肌
sphincter of pancreatic duct [毉葯科學]胰琯括約肌
sphincter morality [心理學]排便控制道德觀
sphincter n. [解剖] 括約肌
sphery 圓躰的, 似球的
spherulization 球化,成球,球化作用
spherulites n.球狀微結晶
spherulin 菌球素, 內孢囊素
spherules 球粒
spherule n.小球；小球躰
spherular adj.小球的(小球狀的；球似的)
spherospermia 球狀精子
spherometry 球逕測量術
spherometer n. [儀] 球逕計；球麪儀
spheroma 球狀瘤